EP4094507A4 - Rétroaction d'informations d'état de canal pour de multiples points de transmission-réception - Google Patents

Rétroaction d'informations d'état de canal pour de multiples points de transmission-réception Download PDF

Info

Publication number
EP4094507A4
EP4094507A4 EP20914821.2A EP20914821A EP4094507A4 EP 4094507 A4 EP4094507 A4 EP 4094507A4 EP 20914821 A EP20914821 A EP 20914821A EP 4094507 A4 EP4094507 A4 EP 4094507A4
Authority
EP
European Patent Office
Prior art keywords
state information
channel state
multiple transmission
information feedback
reception points
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP20914821.2A
Other languages
German (de)
English (en)
Other versions
EP4094507A1 (fr
Inventor
Min Huang
Chao Wei
Yu Zhang
Chenxi HAO
Liangming WU
Qiaoyu Li
Hao Xu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qualcomm Inc
Original Assignee
Qualcomm Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of EP4094507A1 publication Critical patent/EP4094507A1/fr
Publication of EP4094507A4 publication Critical patent/EP4094507A4/fr
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/022—Site diversity; Macro-diversity
    • H04B7/024—Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0636—Feedback format
    • H04B7/0639—Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0658—Feedback reduction
    • H04B7/066—Combined feedback for a number of channels, e.g. over several subcarriers like in orthogonal frequency division multiplexing [OFDM]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0695—Hybrid systems, i.e. switching and simultaneous transmission using beam selection

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
EP20914821.2A 2020-01-20 2020-01-20 Rétroaction d'informations d'état de canal pour de multiples points de transmission-réception Pending EP4094507A4 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/073126 WO2021146829A1 (fr) 2020-01-20 2020-01-20 Rétroaction d'informations d'état de canal pour de multiples points de transmission-réception

Publications (2)

Publication Number Publication Date
EP4094507A1 EP4094507A1 (fr) 2022-11-30
EP4094507A4 true EP4094507A4 (fr) 2024-04-03

Family

ID=76992014

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20914821.2A Pending EP4094507A4 (fr) 2020-01-20 2020-01-20 Rétroaction d'informations d'état de canal pour de multiples points de transmission-réception

Country Status (4)

Country Link
US (1) US20230040058A1 (fr)
EP (1) EP4094507A4 (fr)
CN (1) CN114946249A (fr)
WO (1) WO2021146829A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4094375A1 (fr) * 2020-01-24 2022-11-30 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Rapport de csi basé sur un livre de codes de sélection de port à combinaison linéaire
CN113872650B (zh) * 2021-09-28 2022-11-29 京信网络系统股份有限公司 无线通信方法、装置、设备、系统和存储介质
WO2023216220A1 (fr) * 2022-05-13 2023-11-16 Qualcomm Incorporated Rapport d'informations de matrice de précodage pour de multiples groupes candidats de points de transmission et de réception
US20240097822A1 (en) * 2022-09-15 2024-03-21 Qualcomm Incorporated Techniques for spatial domain basis function refinement
CN117811621A (zh) * 2022-09-30 2024-04-02 华为技术有限公司 一种多站协作的信道状态信息指示方法和通信装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018229078A1 (fr) * 2017-06-16 2018-12-20 Telefonaktiebolaget Lm Ericsson (Publ) Informations d'état de canal pour signaux de référence dans un système de communication sans fil
WO2020006755A1 (fr) * 2018-07-06 2020-01-09 Nec Corporation Livre de codes multi-trp

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8259836B2 (en) * 2006-12-04 2012-09-04 Samsung Electronics Co., Ltd. Method and system for generating candidate beamforming coefficients for transmission of data over a wireless medium
KR102168480B1 (ko) * 2016-08-11 2020-10-21 콘비다 와이어리스, 엘엘씨 뉴 라디오에 대한 csi 피드백 설계
US10827474B2 (en) * 2017-05-09 2020-11-03 Qualcomm Incorporated Techniques and apparatuses for nesting a new radio system and a long term evolution system
EP4027569A1 (fr) * 2017-05-10 2022-07-13 LG Electronics Inc. Procédé de transmission d'un signal de liaison montante dans un système de communication sans fil et appareil associé
CN109391404B (zh) * 2017-08-10 2021-02-09 电信科学技术研究院有限公司 一种csi的反馈及其控制方法、装置
US10582489B2 (en) * 2018-01-12 2020-03-03 Telefonaktiebolaget Lm Ericsson (Publ) Signaling in RRC and MAC for PDSCH resource mapping for periodic and semipersistent reference signal assumptions
WO2019144377A1 (fr) * 2018-01-26 2019-08-01 Qualcomm Incorporated Techniques et appareils de configuration de précodage
CN111431570A (zh) * 2019-01-09 2020-07-17 苹果公司 对增强ii型信道状态信息报告的码本子集限制
EP3909159A1 (fr) * 2019-01-11 2021-11-17 Telefonaktiebolaget LM Ericsson (publ) Rétroaction d'informations d'état de canal (csi) à faible surdébit concernant une transmission multi-point de transmission (trp)
US20220302981A1 (en) * 2019-09-26 2022-09-22 Lenovo (Beijing) Ltd. Methods and Apparatuses for Phase Tracking Reference Signal
US20210143878A1 (en) * 2019-11-08 2021-05-13 Huawei Technologies Co., Ltd. Method and apparatus for channel state information feedback for joint transmission
US20230292310A1 (en) * 2020-08-07 2023-09-14 JRD Communication (Shenzhen) Ltd. Transmitter, receiver and communication method for improving uplink transmission with configured grant
US20230291453A1 (en) * 2022-03-09 2023-09-14 Mediatek Inc. Multiple-transmission-reception-point measurement and transmission in wireless communication system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018229078A1 (fr) * 2017-06-16 2018-12-20 Telefonaktiebolaget Lm Ericsson (Publ) Informations d'état de canal pour signaux de référence dans un système de communication sans fil
WO2020006755A1 (fr) * 2018-07-06 2020-01-09 Nec Corporation Livre de codes multi-trp

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
APPLE: "Considerations on CSI enhancement for MU-MIMO support", vol. RAN WG1, no. Chongqing, China; 20191014 - 20191020, 5 October 2019 (2019-10-05), XP051808761, Retrieved from the Internet <URL:https://ftp.3gpp.org/tsg_ran/WG1_RL1/TSGR1_98b/Docs/R1-1910967.zip R1-1910967 Considerations on CSI enhancement for MU-MIMO support.docx> [retrieved on 20191005] *
ERICSSON: "On CSI enhancements for MU-MIMO", 8 April 2019 (2019-04-08), pages 1 - 13, XP051707583, Retrieved from the Internet <URL:http://www.3gpp.org/ftp/tsg%5Fran/WG1%5FRL1/TSGR1%5F96b/Docs/R1%2D1905519%2Ezip> [retrieved on 20190410] *
HUAWEI ET AL: "Discussion on CSI enhancement", vol. RAN WG1, no. Prague, Czech Republic; 20190826 - 20190830, 17 August 2019 (2019-08-17), XP051764688, Retrieved from the Internet <URL:http://www.3gpp.org/ftp/tsg_ran/WG1_RL1/TSGR1_98/Docs/R1-1908065.zip> [retrieved on 20190817] *
See also references of WO2021146829A1 *

Also Published As

Publication number Publication date
WO2021146829A1 (fr) 2021-07-29
US20230040058A1 (en) 2023-02-09
CN114946249A (zh) 2022-08-26
EP4094507A1 (fr) 2022-11-30

Similar Documents

Publication Publication Date Title
EP4094507A4 (fr) Rétroaction d&#39;informations d&#39;état de canal pour de multiples points de transmission-réception
EP4131655A4 (fr) Système de transmission sans fil
EP3970308A4 (fr) Transmission d&#39;informations de commande pour une communication avec de multiples points de transmission-réception
EP4066557A4 (fr) Procédé de transmission de signal de référence de canal sans fil et rétroaction d&#39;informations d&#39;état de canal
EP3909148A4 (fr) Rétroaction pour informations d&#39;état de canal de type ii
EP4118912A4 (fr) Transmissions de données utilisant des points de réception de transmission multiples
EP4238378A4 (fr) Améliorations de planification destinées à des systèmes de communication sans fil
EP4101221A4 (fr) Multiplexage de canaux à priorité multiple
EP4066407A4 (fr) Amélioration d&#39;informations d&#39;état de canal sur de multiples points d&#39;émission/réception
EP4104305A4 (fr) Communication multicouche
EP4042618A4 (fr) Transmission de rétroaction pour une transmission de liaison latérale
EP4144017A4 (fr) Multiplexage de données de liaison latérale pour la communication
EP4078906A4 (fr) Protocole de hiérarchie de données pour sélection de voie de transmission de données
EP4226686A4 (fr) Transmission redondante pour systèmes radio à large bande
EP4104584A4 (fr) Techniques de simplification de rétroaction d&#39;informations d&#39;état de canal
EP4088404A4 (fr) Procédés et dispositifs pour transmettre des informations de rétroaction
EP4133808A4 (fr) Rapport d&#39;informations d&#39;état de canal pour opération multi-trp
EP4144168A4 (fr) Données de liaison latérale entrelacées pour communication
EP4229953A4 (fr) Détermination d&#39;une porteuse pour une transmission de canal de contrôle
EP4082137A4 (fr) Transmission et configuration d&#39;informations de rétroaction d&#39;informations d&#39;état de canal
EP4144159A4 (fr) Rétroaction d&#39;état de canal pour une commutation d&#39;antenne de réception
EP4101232A4 (fr) Activation d&#39;état d&#39;indicateur de configuration de transmission pour de multiples points de réception de transmission
EP4205326A4 (fr) Architecture pour indication de transmission
EP4136791A4 (fr) Programme de transmission de données
EP4128967A4 (fr) Transmission continue pour une liaison montante à la norme new radio-unlicensed (nr-u)

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20220623

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
RIC1 Information provided on ipc code assigned before grant

Ipc: H04B 7/0456 20170101ALI20231128BHEP

Ipc: H04B 7/024 20170101ALI20231128BHEP

Ipc: H04B 7/06 20060101ALI20231128BHEP

Ipc: H04L 5/00 20060101ALI20231128BHEP

Ipc: H04W 24/10 20090101ALI20231128BHEP

Ipc: H04W 72/04 20090101AFI20231128BHEP

A4 Supplementary search report drawn up and despatched

Effective date: 20240305

RIC1 Information provided on ipc code assigned before grant

Ipc: H04B 7/0456 20170101ALI20240228BHEP

Ipc: H04B 7/024 20170101ALI20240228BHEP

Ipc: H04B 7/06 20060101ALI20240228BHEP

Ipc: H04L 5/00 20060101ALI20240228BHEP

Ipc: H04W 24/10 20090101ALI20240228BHEP

Ipc: H04W 72/04 20090101AFI20240228BHEP